58 lines
1.5 KiB
Docker
58 lines
1.5 KiB
Docker
FROM --platform=$BUILDPLATFORM golang:1.16.0-alpine3.13 AS builder
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# ex. amd64
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ARG TARGETARCH
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# ex. linux/amd64
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ARG BUILDPLATFORM
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RUN apk update && \
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apk add --no-cache git ca-certificates make tzdata gcc libc-dev && \
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apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/testing cfssl && \
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update-ca-certificates
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ENV USER=appuser
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ENV UID=10001
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ENV GID=10001
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WORKDIR /data
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RUN addgroup \
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--gid "${GID}" \
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"${USER}" && \
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adduser \
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--disabled-password \
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--gecos "" \
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--home "/nonexistent" \
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--shell "/sbin/nologin" \
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--no-create-home \
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--uid "${UID}" \
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-G "${USER}" \
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"${USER}"
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COPY Makefile .
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COPY certs/ certs/
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RUN make gen-cert
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COPY go.mod .
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COPY go.sum .
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RUN make dependencies
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ARG BINARYNAME="poller"
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# ARG BINARYNAME="weather"
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COPY . .
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# RUN make build-$BINARYNAME GOARCH=$TARGETARCH GOOS=$(echo $BUILDPLATFORM | cut -d'/' -f1) LDFLAGS='-extldflags="-static"'
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RUN make build-$BINARYNAME GOARCH=$TARGETARCH GOOS=$(echo $BUILDPLATFORM | cut -d'/' -f1) GOBUILDFLAGS="-a -tags netgo -installsuffix netgo"
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FROM scratch
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USER appuser:appuser
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COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
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COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
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COPY --from=builder /etc/passwd /etc/passwd
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COPY --from=builder /etc/group /etc/group
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COPY --from=builder --chown=appuser:appuser /data/bin/* /go/bin/poller
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COPY --from=builder --chown=appuser:appuser /data/certs/out/weather* /go
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WORKDIR /go
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ENTRYPOINT ["/go/bin/poller"]
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